code: def test_sectional_curvature_is_one(self, n_points, atol):
      base_point = self.data_generator.random_point(n_points)
      tangent_vec_a = self.data_generator.random_tangent_vec(base_point)
      tangent_vec_b = self.data_generator.random_tangent_vec(base_point)
  
      res = self.space.metric.sectional_curvature(
          tangent_vec_a, tangent_vec_b, base_point
      )
      batch_shape = (n_points,) if n_points > 1 else ()
      expected = gs.ones(batch_shape)
  
      self.assertAllClose(res, expected, atol=atol)
  
imports: import random
  import pytest
  import geomstats.backend
  from geomstats.geometry.hypersphere import Hypersphere, HypersphereMetric
  from geomstats.test.parametrizers import DataBasedParametrizer
  from geomstats.test.random import HypersphereIntrinsicRandomDataGenerator
  from geomstats.test_cases.geometry.hypersphere import HypersphereCoordsTransformTestCase, HypersphereExtrinsicTestCase, HypersphereIntrinsicTestCase
  from geomstats.test_cases.geometry.riemannian_metric import RiemannianMetricTestCase
  from .data.hypersphere import Hypersphere2ExtrinsicMetricTestData, Hypersphere2IntrinsicMetricTestData, Hypersphere4ExtrinsicMetricTestData, HypersphereCoordsTransformTestData, HypersphereExtrinsicMetricTestData, HypersphereExtrinsicTestData, HypersphereIntrinsicTestData
label_desc: Use image node_id 1 for calling the TestHypersphereExtrinsicMetric obj's underlying member method code with example usage: obj.test_sectional_curvature_is_one(n_points, atol) without return types